//package com.xxxx.mail;
//
//import com.rabbitmq.client.Channel;
//import com.xxxx.server.pojo.Employee;
//import com.xxxx.server.pojo.MailConstants;
//import org.slf4j.Logger;
//import org.slf4j.LoggerFactory;
//import org.springframework.amqp.rabbit.annotation.RabbitListener;
//import org.springframework.amqp.support.AmqpHeaders;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.boot.autoconfigure.mail.MailProperties;
//import org.springframework.data.redis.core.HashOperations;
//import org.springframework.data.redis.core.RedisTemplate;
//import org.springframework.mail.javamail.JavaMailSender;
//import org.springframework.mail.javamail.MimeMessageHelper;
//import org.springframework.messaging.Message;
//import org.springframework.messaging.MessageHeaders;
//import org.springframework.stereotype.Component;
//import org.thymeleaf.TemplateEngine;
//import org.thymeleaf.context.Context;
//
//import javax.mail.internet.MimeMessage;
//import java.io.IOException;
//import java.util.Date;
//
///**
// * 消息接收者
// *
// * @author zhoubin
// * @since 1.0.0
// */
//@Component
//public class MailReceiver {
//
//	private static final Logger LOGGER = LoggerFactory.getLogger(MailReceiver.class);
//
//	@Autowired
//	private JavaMailSender javaMailSender;
//	@Autowired
//	private MailProperties mailProperties;
//	@Autowired
//	private TemplateEngine templateEngine;
//	@Autowired
//	private RedisTemplate redisTemplate;
//
//	@RabbitListener(queues = MailConstants.MAIL_QUEUE_NAME)
//	public void handler(Message message, Channel channel) {
//		Employee employee = (Employee) message.getPayload();
//		MessageHeaders headers = message.getHeaders();
//		//消息序号
//		long tag = (long) headers.get(AmqpHeaders.DELIVERY_TAG);
//		String msgId = (String) headers.get("spring_returned_message_correlation");
//		HashOperations hashOperations = redisTemplate.opsForHash();
//		try {
//			if (hashOperations.entries("mail_log").containsKey(msgId)){
//				LOGGER.error("消息已经被消费=============>{}",msgId);
//				/**
//				 * 手动确认消息
//				 * tag:消息序号
//				 * multiple:是否确认多条
//				 */
//				channel.basicAck(tag,false);
//				return;
//			}
//			MimeMessage msg = javaMailSender.createMimeMessage();
//			MimeMessageHelper helper = new MimeMessageHelper(msg);
//			//发件人
//			helper.setFrom(mailProperties.getUsername());
//			//收件人
//			helper.setTo(employee.getEmail());
//			//主题
//			helper.setSubject("入职欢迎邮件");
//			//发送日期
//			helper.setSentDate(new Date());
//			//邮件内容
//			Context context = new Context();
//			context.setVariable("name", employee.getName());
//			context.setVariable("posName", employee.getPosition().getName());
//			context.setVariable("joblevelName", employee.getJoblevel().getName());
//			context.setVariable("departmentName", employee.getDepartment().getName());
//			String mail = templateEngine.process("mail", context);
//			helper.setText(mail, true);
//			//发送邮件
//			javaMailSender.send(msg);
//			LOGGER.info("邮件发送成功");
//			//将消息id存入redis
//			hashOperations.put("mail_log", msgId, "OK");
//			//手动确认消息
//			channel.basicAck(tag, false);
//		} catch (Exception e) {
//			/**
//			 * 手动确认消息
//			 * tag：消息序号
//			 * multiple：是否确认多条
//			 * requeue：是否退回到队列
//			 */
//			try {
//				channel.basicNack(tag,false,true);
//			} catch (IOException ex) {
//				LOGGER.error("邮件发送失败=========>{}", e.getMessage());
//			}
//			LOGGER.error("邮件发送失败=========>{}", e.getMessage());
//		}
//	}
//}